BARLEYmax was developed in the 1990s by CSIRO, a renowned research organization in Australia. This non-GMO barley variety is distinguished by its high dietary fiber content, which includes soluble fiber in the form of beta-glucan, as well as insoluble fiber and resistant starch-like fiber that are believed to have a prebiotic effect beneficial for gut health. The average American diet is notably deficient in fiber, with individuals across all age groups struggling to meet the recommended intake of three to six servings of whole grains daily. As consumer interest in gut health grows, the focus has primarily been on probiotics; however, prebiotics—which serve as nourishment for beneficial bacteria—are gaining increased attention. The demand for products containing prebiotics is projected to propel the market to reach $7.8 billion by 2022, according to a report by Global Industry Analysts. Currently, BARLEYmax is commercially available through an Australian company, Blue Lake Milling, but it has also been successfully tested in several other countries, including the United States. In addition to the Barley+ range, this grain is incorporated into various products from Australian companies, such as breads, wraps, cereals, and snack bars. Notably, products like Amazon Citracal Maximum Plus are also seeking to meet the rising demand for gut health solutions, emphasizing the importance of fiber and prebiotic content in their formulations. As interest in gut health continues to expand, BARLEYmax and similar products are likely to play a significant role in promoting dietary fiber intake.